展开 ((x^2-3x+7)dx)/((x^3+x))

解答

展开

\frac{( x ^{2} - 3 x + 7 ) d x}{( x ^{3} + x )}

\frac{x ^{2} d x - 3 x d x + 7 d x}{x ^{3} + x}

求解步骤

\frac{( x ^{2} - 3 x + 7 ) d x}{x ^{3} + x}

乘开

(x^{2} - 3 x + 7) d x : x^{2} d x - 3 x d x + 7 d x

= \frac{x ^{2} d x - 3 x d x + 7 d x}{x ^{3} + x}

\frac{\partial ^{2}}{\partial x ^{2}} ((y) (4 x^{3} + 3 x^{2} z + 5 x z^{2} + 6 z^{3} + 20))

e x p an d 3 (3 + ln (2 + 1))

e x p an d \frac{8}{( 1 + x ^{2} ) ^{2}}

e x p an d (c) (- j f - j f a - j - e j - j^{2} c - ja + e jb)

e x p an d \frac{7 \cdot 2 ^{(k + 1)} + ( - 1 ) ^{(k + 2)}}{3}